* reimplementation of the file item plugin for linking files to activities

### KArchive

* fix handling of uncompressed files

### KConfigWidgets

* fix missing default shortcuts for standard actions, leading
to many runtime warnings
* better support for QGroupBox in KConfigDialogManager

### KCoreAddons

* Mark KAboutData::setProgramIconName() as deprecated, it did not
do anything. Use QApplication::setWindowIcon(QIcon::fromTheme("...")) instead.
* new classes Kdelibs4ConfigMigrator and KPluginMetaData

### KDeclarative

* added org.kde.kio component.

### KImageFormats

* disable the DDS and JPEG-2000 plugins when Qt version is 5.3
or later

### KIO

* now follows the mime-apps spec, for better interoperability
with gio when it comes to the user's preferred and default apps.
* new classes EmptyTrashJob and RestoreJob.
* new functions isClipboardDataCut and setClipboardDataCut.

### KNewStuff

* installing "stuff" works again (porting bug)

### KWidgetsAddons

* new class KColumnResizer (makes it easy to vertically align widgets across
groups)

* The maximum worker count will now decrease if a lower value is set
after workers have been created. Previously, workers would remain active
once they have been created.
* Examples from the previous ThreadWeaverDemos Github repository are
being merged into the KF5 ThreadWeaver repo.
* The maximum worker count can now be set to zero (the previous minimum
was 1). Doing so will effectively halt processing in the queue.
* Documentation of various aspects of ThreadWeaver use is becoming part
of the KDE Frameworks Cookbook. Parts of it is located in the examples/
directory.

### Buildsystem changes

* Support for relative libexec dir.

### Frameworkintegration

* the file dialog now remembers its size correctly, and works better with
remote URLs.